package com.hgts.utils;

import lombok.extern.slf4j.Slf4j;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Slf4j
public class LoginInterceptor implements HandlerInterceptor {


    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //1.判断是否需要拦截（ThreadLocal中是否有用户）
        log.info("访问登入拦截器资源");
        if (UserHolder.getUser() == null){
            // 没有 需要拦截 设置状态码
            response.setStatus(401);
            return false;
        }
        // 有用户放行
        return true;
    }

}
